[CSL-1709] Log the reason why the connection was lost.
[CSL-1709] Log the reason why the connection was lost.

input-output-hk/cardano-sl,input-output-hk/cardano-sl,input-output-hk/pos-haskell-prototype,input-output-hk/cardano-sl,input-output-hk/cardano-sl,input-output-hk/pos-haskell-prototype,input-output-hk/pos-haskell-prototype,serokell/tw-rework-sketch